I get both though not so much the back pain. I also get pains that run from my stomach right down the front of my thighs to my knees. It's like a dragging sensation, as if someone was digging their fingers into me then pulling them down the length of my thighs. Very weird and unpleasant. I think it's when I'm ovulating too I get that.

Mine's got worse as I've got older as well. In my teens and twenties I sailed through them. You can't beat a hot water bottle or a hot bath I think, then popping some painkillers and having an early night.